Fig. 4From: Synergistic Enhancement of Antitumor Efficacy by PEGylated Multi-walled Carbon Nanotubes Modified with Cell-Penetrating Peptide TAT a The TGA curves of oxidized MWCNTs, MWCNTs-PEG, FITC-MWCNTs-PEG, and DSPE-PEG2000, respectively. b The TGA curves of oxidized MWCNTs, MWCNTs-PEG-Mal, MWCNTs-PEG-TAT, FITC-MWCNTs-PEG-TAT, and DSPE-PEG2000-Mal, respectively. c UV-Vis absorption spectra of DOX and different MWCNTs complexes. d Drug release of DOX loaded MWCNTs-PEG and MWCNTs-PEG-TAT under different pHBack to article page